Question Cayman GT 4 CS MR weird shifting-behaviour under load

While driving the Cayman GT 4 CS MR and the Cayman GT 4 CS I recognized unnormal behaviour of the dual-clutch-gearbox. When accellerating and shifting from first to second and from second to third gear the rear tires slip suddenly for a short moment of time as the next gear is engaged , thus resulting in an impuls to the rear of the car, making it often uncontrollable in tight turns. It doesn´t matter how much I accellerate ,even at low revs and almost no throttle applied the tires keep slipping for a brief moment.
Is this intentional?